I mention this here because it is one of the things that occupies more of my days than I would like, and because it is a piece of life that I think we all, over the course of time, have in common. There are a variety of ways to deal with such occurences. At one extreme there are those that speak their minds and don't appear to be concerned about how what they voice affects others. At the other end of the spectrum are the eternally silent who either accumulate the wounds or find a way to process them and move on.
There is no textbook answer, only factors to be weighed, decisions to be made, and consequences to be handled, one way or the other. I try, in most cases, to aim for honesty. Sometimes a relationship, and the context in which it lives, is so complex that each wrinkle that occurs within it must be addressed on its own terms. Life is not easy. At the very least I make every effort to place myself in the Light, as Quakes are fond of saying. Whatever the choice, there is no better place from which to make it.